@Michael_Soprano Here's some examples
A retail org with multiple brands serving same customers base but with different marketing automation tools ( mailchimp, hubspot, klaviyo etc..).
To consolidate interactions of marketing campaigns run into a single dataset ( which is then enabled for profile) one could use HTTP API pointing to same dataset but with different flow from each of these marketing automation tools as events happen.
Another one i could think of is an org wanting to capture customer feedback (NPS) via various channel ( Phone, Chat and kiosk app) could enable HTTP API to point to same dataset and collect data as it happens
Does that help?
Anil